Dave Jones wrote:
>
> Exposing the guts of the msr driver like that doesn't seem too clean.
> For in-kernel use, why not just add something like this..
> (note:not even compile tested)..
>
Well, that *is* the guts of the MSR driver.
> void rdmsr_on_cpu(unsigned int cpu, unsigned long msr, unsigned long *lo, unsigned long *hi)
> {
> cpumask_t oldmask;
>
> oldmask = current->cpus_allowed;
> set_cpus_allowed(current, cpumask_of_cpu(cpu));
>
> rdmsr(msr, &lo, &hi);
>
> set_cpus_allowed(current, oldmask);
> }
>
[The above doesn't work, by the way. This approach was discussed a long
time ago, and vetoed due to the potential for deadlock.]
-hpa
